You know, some of us don't actually have to own anything to understand how things work.
What I told you in my post above yours is really no different from what you're saying. The only difference is that you're not really reading it, are you?
Funny how I can set up any QS FD for both 10 and 11S systems using only 3 clicks.
So, if the 08 Chorus FD is QS (which it should be) then it should be possible to set it up for 3 clicks just the same.
Even the latest 11 speed FDs will work fine with 4 clicks, as long as the limit screws are set properly. All you're doing is using a click to provide some extra cable tension. With frames lacking a barrel adjuster, it's often too much work to dial-in the FD to work with the minimum 3-clicks. There will be no chain drop if 4 clicks are used.
Ah, now we get there. It's not that it's not possible. It's just too much hassle for a mechanical engineer with 30 years of experience. Right.....
Funny also how after so many years some seem to think to know more about the stuff than even the designers do. Funny, funny....
There will be no chain drop if 4 clicks are used.
Only if and when you know how to use them properly. With 3 clicks the chance of a chain drop is reduced to a virtual zero.